Siemens RVA53.242 - Cascade 2 X 1; Supplementary Information on the Plant Types Listed

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Siemens Building Technologies Basic Documentation RVA63.242, RVA53.242 CE1P2373E
Landis & Staefa Division Application examples 26.03.2001
7.3.6 Cascade 2 x 1
B31
B3
Y1
B1
2373z49
Q2
Q3
Heat source variant Plant type D.h.w. PC MC
A B C D E
1 112 x
1 113
1 114 x x
1 115 x
1 116 x x
1 117 x
7.4 Supplementary information on the plant types
listed
a) With these applications, setting “System pump before d.h.w.“ can be
substituted by setting “Boiler pump“.
b) If, due to the applicatin, multi-functional outputs K6 and K7 cannot be parameterized
as HC2 pump, the controller can generate a weather-compensated flow temperatue.
For heating circuit slope HC1 (line 30), a valid value must be set.
This function is required in the case the consumer side does not generate heat
demand signals, that is, no LPB-compatible devices are connected and it is not
possible to use input H1 or H2.
c) In the case of BMU applications (B1) with d.h.w. heating by the BMU, this plant type
is also shown.
With this application, setting “D.h.w. priority” of the RVA63 is not active.